[  519.486162] bond0: (slave eth0): making interface the new active one
[  519.486242] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.669304] bond0: (slave eth0): Releasing backup interface
[  523.741115] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.895355] bond0: (slave eth0): Releasing backup interface
[  527.930305] bond0 (unregistering): Released all slaves